甲州水晶貴石細工の伝統工芸士。貴石彫刻家として、現代的センスと古くから伝承する伝統技術を併せ持ち、石の特徴を活かしながら地金加工と融合させるなど、次々と新しい作品を発表している。

Koji Takuma is a traditional craftsperson of “Koushu crystal craftsmanship”. As gem sculptor, he has both modern sense and traditional techniques transmitted from old times. Utilizing characteristic of gemstone, and also combining his style with metal processing technique, he successively presents new craft works.